I have recently posted that I have covered the intake of the belt housing cover with bug screen, but unfortunately I am still having occasional slipping in fresh powder. I was wondering if anyone had sealed the intake off with duct tape to keep every thing out. I know that the CVT needs ventilation, but is there a better way to vent it, and still keep air-borne snow from getting sucked in?

 

One word "SNORKEL", thats really the only way I know of.

 

One person in here put a foamy airfilter type of thing in the intake. I haven't tried it,but that sounded like a good idea to catch moisture but let air in still.

 

I have used a peice of fabric, the same stuff that "Outter Wears" makes their pre-filters out of. This does a great job for snow and water.

 

I got a great fix... go buy some flex pipe (like the old cars had going to their aircleaners). I got a six foot piece and ran it thru the fender up under the hood. Run a curve at the end. I did this mod this fall and went runnin thru water and mud all day (deep) with no belt slip!! So far this winter no problems - (I'm in Michigan - lotsa snow) Hope this might help

 

I also did this with my Scrambler and worked fine for awhile (couple of years). I just recently went through the whole machine to inspect everything and it turns out that my CVT cover was all contorted and the exhaust port on the cover was all misshapen. I looked at the intake hose I had installed on the intake side of the CVT housing (just like the previous post did it) and found that the body plastic had mashed the opening of the wire reinforced hose shut quite a bit. So I ended up shortening the hose, but not enough for any water to be able to splash into the intake.

When trying to stop water from entering the intake of your CVT be especially conscious of any reduction in air flow you may be causing. This decrease in air flow is what caused my housing to get hot enough to warp and get misshapen the way it did. The covers for the CVT's run anywhere from $52 - $82, depending on the style your's has on it (big exhaust port or small).

I ran mine like it was for a couple of years, but haven't done any deep water riding in awhile. So there's no telling if it was warped enough to leak or not. I would say it would have leaked in anything over the CVT cover. The only thing that clued me into a possible problem with it was a slight rubbing noise when idling. The cover had warped to the point that it was hitting the clutch.

 

You have pointed out the long term problem and, of course that is heat damage to the PVT cover. The late model Polaris's have the composite cover thats is, at least theoretically, heat resistant. The short term problem is the belt. When you restrict ventilation, the belt runs much hotter, and will develop a hard glaze on it. I am not sure if it will get hot enough to do any damage in the enviroment you ride in. I have not had the chance to ride in snow. Anyway, I just thought I would mention the possible belt damage that may result.

Greg

 

You have pointed out the long term problem and, of course that is heat damage to the PVT cover. The late model Polaris's have the composite cover thats is, at least theoretically, heat resistant. The short term problem is the belt. When you restrict ventilation, the belt runs much hotter, and will develop a hard glaze on it. I am not sure if it will get hot enough to do any damage in the enviroment you ride in. I have not had the chance to ride in snow. Anyway, I just thought I would mention the possible belt damage that may result.

Greg

 

Give it a try the holes are for cooling the belt housing correct? Well would that be important in -20 C weather? I would just take the tape off on warmer day of -10 or less.